根据所给提示，完成句子。每空一词，含缩略词。
1. My parents used to do exercise after supper. (改为否定句)
My parents _____ _____ to do exercise after supper．
2. Mr. White will stay in Chongqing for a week. (对划线部分提问)
_____ _____ will Mr. White stay in Chongqing?
3. This book is very interesting. (改为感叹句)
_____ _____ the book is!
4. I think Mr. Smith is in danger. (改为反意疑问句)
I think Mr. Smith is in danger, _____ _____?
5. 昨天妈妈回来时我正在读书. (完成译句)
I was _____ some _____ when Mom came back yesterday.